70s porn star - "French Throat"

The film is in decent shape considering it's from a video tape that's almost thirty years old. It has creative photography, music, story and has that pervading 70's darkness that I am all so fond of, more so now, because it's so definitive of that era and looks unlikely to make a return soon, All of the female cast is unknown to me besides, "Helen Madigan" who is heavily involved in the film which is great for me because I like her. She kinda reminds me of Diane Keaton.